131496853693 has 2 divisors, whose sum is σ = 131496853694. Its totient is φ = 131496853692.

The previous prime is 131496853679. The next prime is 131496853727. The reversal of 131496853693 is 396358694131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111822022404 + 19674831289 = 334398^2 + 140267^2 .

It is a cyclic number.

It is not a de Polignac number, because 131496853693 - 2²¹ = 131494756541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131496853793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65748426846 + 65748426847.

It is an arithmetic number, because the mean of its divisors is an integer number (65748426847).

Almost surely, 2^131496853693 is an apocalyptic number.

It is an amenable number.

131496853693 is a deficient number, since it is larger than the sum of its proper divisors (1).

131496853693 is an equidigital number, since it uses as much as digits as its factorization.

131496853693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12597120, while the sum is 58.

The spelling of 131496853693 in words is "one hundred thirty-one billion, four hundred ninety-six million, eight hundred fifty-three thousand, six hundred ninety-three".